ssmping

check your multicast connectivity

Tools to check whether you can receive Source Specific Multicast (SSM)
or Any Source Multicast (ASM) via either IPv4 or IPv6

If a host runs ssmpingd, users on other hosts can use the ssmping client
to test whether they can receive SSM from the host. Another program
called asmping is also provided to check whether can receive ASM.

/usr/share/doc/ssmping/README.gz

ssmping/asmping/ssmpingd/mcfirst README
Introduction
ssmping is a tool for checking whether a host can receive SSM from
another. If a host runst ssmpingd, users on other hosts can check
that they receive from this host by running the ssmping tool.
asmping is similar to ssmping, but checks for ASM rather than SSM.
This package also contains a tool called mcfirst.
How it works
ssmpingd listens f
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